The measles outbreak was originally concentrated in a rural Mennonite community in Gaines County, where many children are not vaccinated. Who are the Mennonites?

The Mennonite population being affected by a measles outbreak in West Texas is part of a larger, loosely affiliated group of churches worldwide with varied beliefs and leadership structures — and with sometimes strained or distant relations with public authorities.

The US CDC is providing “technical assistance, laboratory support and vaccines as needed” to West Texas authorities